The Highlander put the officer between us and, followed by the four patrol men, we went off down a lonely road. The moon had now risen. After walking about half a mile we came to a large barn, outside of which stood a sentry. It was the billet of a battalion of Highlanders. I told the man privately, that we had arrested the officer under suspicion of his being a spy, and if the sentry on duty should see him coming back along the road, he was to detain him and have him identified. As we walked along, a number of men who had been concealed in the ditches on each side of the road rose up and followed us. They were men of the patrol commanded by the young Highlander on the other side of our prisoner. It was a delightfully weird experience. There was the long quiet moonlit road and the desolate fields all around us. While I was talking to one of the men, the patrol officer, unknown to me, allowed the spy to go off on his wheel, and to my astonishment when I turned I saw him going off down the road as hard as he could. I asked the officer why he had let him go. He said he thought it was all right and the man would be looked after. Saying this, he called his patrol about him and marched back again. The thing made me very angry. It seemed to me that the whole war might depend on our capturing the spy. At least, I owed it to the British Army to do my best to be certain the man was all right before I let him go. So I continued to follow him by myself down the road. The next farm I came to was about a mile off. There I was halted by a sentry, and on telling my business I was shown into a large barn, where the sergeant-major of a Scottish battalion got out of the straw and came to talk to me. He told me that an officer riding a wheel had passed sometime before, asking his way to a certain artillery brigade. I told the sergeant-major my suspicions and while we were talking, to our astonishment, the sentry announced that the officer, accompanied by a Black Watch despatch rider, had turned up again, having heard that the brigade he wanted was in the other direction. The sergeant and I went out and challenged him and said that he had to come to the colonel and be identified. The colonel was in the back room of a little cottage on the other side of the road. I made my way through the garden and entered the house. The colonel, an oldish (p. 085) man, was sitting at a table. In front of him was an empty glass and an empty whisky bottle. It struck me from a superficial glance that the colonel was the only full thing in the room. He seemed surprised at having so late a visitor. I told him my suspicions. "Show the man in, Padre," he said, and I did.